issue2551120 - The sorted method of MultilinkHTMLProperty crashes ... if the given property is unset for an element of the list. Crash fixed. New feature NoneFirst added to method to make unset values sort at start or end of sorted list. Current testing framework for this code is insuffient for testing change. Committing without automated test because it solves a crash.

def preset_new(db, cl, nodeid, newvalues):
    """ Make sure the status is set on new issues"""

    if 'status' in newvalues and newvalues['status']:
        return

    new = db.status.lookup('new')
    newvalues['status'] = new


def init(db):
    # fire before changes are made
    db.issue.audit('create', preset_new)